Future changes in food web transport of legacy and emerging POPs
Theme 3 aims to answer the following questions:
- How does climate-induced changes influense terrestrial fluxes of pollutants and ADOC?
- How does changed temperature, levels of ADOC and nutrients, and carbon quality affect sorption and bioaccumulation of POPs in the three basins of the Baltic Sea? Do these changes lead to increased production of biogenic polybrominated dioxins?
- How can complex relations between ecosystem function and pollutant food web transfer be described and used for food web modeling?
Summary of results (so far)
Model system for sorption studies developed
Within Theme 3 the association of pollutants to dissolved organic matter (DOC) is studied, including the variation of the nature of DOC in different geographic regions. A model system for studies of sorption of emerging and legacy pollutants on DOC has been developed, which is based on measurements of reductions in the freely dissolved fraction of pollutants upon addition of environmentally relevant amounts of DOC (low mg/L levels).